ehci not used(?) when connected device turned on later

[Warner Losh]

From: Juergen Lock <nox at jelal.kn-bremen.de>
Subject: ehci not used(?) when connected device turned on later
Date: Tue, 17 Jan 2006 23:51:31 +0100

> Is this a known problem with the 5.4 usb code?
> 
> 1. connect an externally powered umass device (eg a harddrive with
> its own psu) thats turned off
> 2. boot freebsd
> 3. turn the device on later
> 
>  then it gets only usb 1.1 speed even when ehci is in the kernel.
> You have to reconnect it _while being turned on_ to get usb2 speed.
> Same problem if you turn it off after use and later turn it back on
> while still being connected...
> 
>  Is there a fix?  (With linux it works as expected, if that means
> anything... :)
> 
>  Oh, please Cc me with followups, I'm not subscribed on -usb (yet?)

I have no idea what you are saying.

ehci is used for me when I plug in my devices, or when I turn them
on.  Do you have ehci in your kernel?  It was disabled by default in
5.4.

Warner